In temple 2, open the area where the mask piece is stored; find the unlit taper first. The taper (Candle) is really a switch to open the double doors to the mask piece area.

Voodoo 2 3D Video card and the menu is flashing.

This is an issue with the Voodoo 2 card being set to Force Triple Color Buffering for Glide Apps. To shut this feature off, click Start / Settings / Control Panel. In Control Panel, double-click Display. Click on the tab Voodoo 2 and then click on the Advanced button. In this window, un-check Force Triple Color Buffering and click ok. When restarting and running the game again, your issue should be resolved.

While the game is loading pressing ESC causes it to crash

This is a known issue with the game when pressing ESC; this will return you to the main menu, at which point if you attempt to save the game it will not know where to save it and cause the game to crash and go back to the desktop. The resolution for this is to not press ESC during the time the game is trying to load into a world.